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GB2201819B - Detection systems - Google Patents
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GB2201819B - Detection systems - Google Patents

Detection systems

Info

Publication number
GB2201819B
GB2201819B GB8701358A GB8701358A GB2201819B GB 2201819 B GB2201819 B GB 2201819B GB 8701358 A GB8701358 A GB 8701358A GB 8701358 A GB8701358 A GB 8701358A GB 2201819 B GB2201819 B GB 2201819B
Authority
GB
United Kingdom
Prior art keywords
detection systems
systems
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8701358A
Other versions
GB8701358D0 (en
GB2201819A (en
Inventor
David John Ardener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TASK FORCE INTERNATIONAL LIMIT
Original Assignee
TASK FORCE INTERNATIONAL LIMIT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TASK FORCE INTERNATIONAL LIMIT filed Critical TASK FORCE INTERNATIONAL LIMIT
Priority to GB8701358A priority Critical patent/GB2201819B/en
Publication of GB8701358D0 publication Critical patent/GB8701358D0/en
Publication of GB2201819A publication Critical patent/GB2201819A/en
Application granted granted Critical
Publication of GB2201819B publication Critical patent/GB2201819B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission lines

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
GB8701358A 1987-01-22 1987-01-22 Detection systems Expired - Fee Related GB2201819B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8701358A GB2201819B (en) 1987-01-22 1987-01-22 Detection systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8701358A GB2201819B (en) 1987-01-22 1987-01-22 Detection systems

Publications (3)

Publication Number Publication Date
GB8701358D0 GB8701358D0 (en) 1987-02-25
GB2201819A GB2201819A (en) 1988-09-07
GB2201819B true GB2201819B (en) 1991-05-29

Family

ID=10611035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8701358A Expired - Fee Related GB2201819B (en) 1987-01-22 1987-01-22 Detection systems

Country Status (1)

Country Link
GB (1) GB2201819B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7180424B2 (en) * 2002-11-08 2007-02-20 Bio-Sense Canine security system
US7800506B2 (en) 2005-03-17 2010-09-21 Eyal Zehavi Canine security system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009478A (en) * 1977-11-28 1979-06-13 Holzer W An alarm system
GB1547448A (en) * 1976-06-01 1979-06-20 Eng Syst Alarm system
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
GB2033123A (en) * 1978-08-17 1980-05-14 Laine Y Alarm system
GB2118342A (en) * 1982-04-08 1983-10-26 Elsec Electronic Security Syst Intrusion detector
GB2119984A (en) * 1982-03-12 1983-11-23 Guglielmetti Electronique Infra-sonic detector and alarms including same
US4485374A (en) * 1980-06-16 1984-11-27 Francis P. Meserow Non-wired perimeter protective system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1547448A (en) * 1976-06-01 1979-06-20 Eng Syst Alarm system
GB2009478A (en) * 1977-11-28 1979-06-13 Holzer W An alarm system
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
GB2033123A (en) * 1978-08-17 1980-05-14 Laine Y Alarm system
US4485374A (en) * 1980-06-16 1984-11-27 Francis P. Meserow Non-wired perimeter protective system
GB2119984A (en) * 1982-03-12 1983-11-23 Guglielmetti Electronique Infra-sonic detector and alarms including same
GB2118342A (en) * 1982-04-08 1983-10-26 Elsec Electronic Security Syst Intrusion detector

Also Published As

Publication number Publication date
GB8701358D0 (en) 1987-02-25
GB2201819A (en) 1988-09-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950122